22902742 has 4 divisors (see below), whose sum is σ = 34354116. Its totient is φ = 11451370.

The previous prime is 22902739. The next prime is 22902751. The reversal of 22902742 is 24720922.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×22902742² = 1049071182237128, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22902742.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5725684 + ... + 5725687.

It is an arithmetic number, because the mean of its divisors is an integer number (8588529).

Almost surely, 2^22902742 is an apocalyptic number.

22902742 is a deficient number, since it is larger than the sum of its proper divisors (11451374).

22902742 is a wasteful number, since it uses less digits than its factorization.

22902742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11451373.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 22902742 is about 4785.6809337857. The cubic root of 22902742 is about 283.9852782820.

The spelling of 22902742 in words is "twenty-two million, nine hundred two thousand, seven hundred forty-two".